This standard covers the rating structure for all high-voltage circuit breakers, which include all voltage ratings above 1000 V ac and comprise both indoor and outdoor types having the preferred ratings as listed in ANSI C37.06-1997. Typical circuit breakers covered by these standards have maximum voltage ratings ranging from 4.76 kV through 800 kV, and continuous current ratings of 600 A,1200 A, 2000 A, and 3000 A associated with the various maximum voltage ratings. The rating structure establishes the basis for all assigned ratings, including continuous current, dielectric withstand voltages,short-circuit current, transient recovery voltage, and capacitor switching, plus associated capabilities such as mechanical endurance, load current, and out-of-phase switching. This standard does not cover generator circuit breakers, which are covered in IEEE Std C37.013-1997.
- Sponsor Committee
- PE/SWG - Switchgear
Learn More - Status
- Superseded Standard
- Superseded by
- C37.04-2018
- Superseding
- C37.04-1979
- Corrigendum
-
C37.04-1999/Cor 1-2009
- Amendments
-
C37.04a-2003
C37.04b-2008
- Board Approval
- 1999-06-26
- History
-
- ANSI Approved:
- 1999-10-26
- Published:
- 1999-12-30
- Reaffirmed:
- 2006-12-06
Additional Resources
- Erratas
- C37.04-1999_errata.pdf
- Interpretation
- C37.04_C37.06_C37.09_interp.pdf
Working Group Details
- Society
- IEEE Power and Energy Society
Learn More - Sponsor Committee
- PE/SWG - Switchgear
Learn More - Working Group
-
HVCB-WG_C37.04 - High Voltage Circuit Breaker Standard Working Group
Learn More - IEEE Program Manager
- Ashley Moran
Contact - Working Group Chair
- John Webb
PC37.04a
Standard for Ratings and Requirements for AC High-Voltage Circuit Breakers with Rated Maximum Voltage Above 1000 V Amendment: Changes to construction requirements and clarification of certain related required capabilities
This amendment will address items discovered by users related to discrepancies with other industry standards: Harmonize pollution levels for normal service condition. Improve definition of low temperature requirements. Further define requirements for capacitive switching class C0. Clarify required electrical service capability. Harmonize temperature limitations for contacts in non-oxidizing gases. Improve definition of interrupting time. Implement requirements from IEEE C37.11 which are more properly in C37.04 Align material imported from NEMA SG-4 with current industry practices.
C37.04-2018
IEEE Standard for Ratings and Requirements for AC High-Voltage Circuit Breakers with Rated Maximum Voltage Above 1000 V
The rating structure for all high-voltage circuit breakers, which include all voltage ratings above 1000 V ac and comprise both indoor and outdoor types, is covered in this standard. Preferred ratings are also provided. Typical circuit breakers covered by these standards have maximum voltage ratings ranging from 4.76 kV through 800 kV, and continuous current ratings of 600 A, 1200 A, 2000 A, 3000 A, and 4000 A associated with the various maximum voltage ratings. The rating structure establishes the basis for all assigned ratings, including continuous current, insulation capability (formerly dielectric withstand voltages), short-circuit current, transient recovery voltage, and capacitor switching, plus associated capabilities such as mechanical endurance, load current, and out-of-phase switching. Generator circuit breakers are covered by IEC/IEEE Std 62271-37-013.
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards